Thread: 5mm Spiral Upcut Bit

Have you tried carbitool?
They seem to stock most bits and are of good quality.

Didn't think of them. Had a look at their online catalogue but the only 5mm straight bits they have are not for plunging. I'm using this bit to drill holes.

I've sent them an email though, so we'll see what that brings....

Hi Silent,
Would a 3/16 inch (4.78mm) do you. CMT make one of those in a spiral upcut. I think you'll be extremely lucky to get a 5mm spiral upcut and even luckier to find a 5mm reducing collet.
Another thought, try Leigh Jigs. They may make a 5mm upcut for one of their FMT or Finger joint templates.

Regards,

Rob

I'm using it to drill holes for shelf pins. I suppose the other alternative is to try and find 1/4" shelf pins. Probably just as hard.

Think I might end up drilling a 3/16" hole with the router and then enlarging it with a 5mm drill in the press.

Nothing is ever easy

Hey SilentC, long time no see! I would just make an indexing jig to locate the shelf pin holes and make it thick enough to guide a regular drill at 90º.

Cheers
Michael

G'day Michael.

Yes that would be the smart thing to do. I came across this idea somewhere though and it's a jig that consists of a matched pair of guides that you use with a router and a template guide. One board, drill 1" holes up the middle at 32mm spacing, then rip in half. The divots in the guide index the router with a 1 1/8" template guide.

Means you can drill both sides without having to reset the jig and if there are slight inaccuracies in the placement of the holes (when you made the jig) it doesn't matter because both holes are guaranteed to be the same height.

Trouble is, it relies on being able to find the correct sized router bit.

Oh well...

Originally Posted by silentC

. I suppose the other alternative is to try and find 1/4" shelf pins. Probably just as hard.

Hi Darren, getting 1/4 shelf support ins is easier than you think. Wilson & Bradley sell them, code SU128 and no doubt others as well. Maybe even Bunnings or they can get them in for you.


Peter.

Thanks Peter!

I suppose I should try a bit harder to find them. I knew I could get them from Lee Valley but even with the good exchange rate, it's probably not worth the postage...

Wealden Tool Company do a 5mm Spiral Upcut with ¼" shaft, part number T4U5000. They do mail order. HTH

Ray

I've sent them an email to see if they'll ship to Australia (online ordering is for UK and Europe only according to the web site).

Cheers!

Check Professional Woodworkers Supply - they have a line of plunge spiral bits with 'oversized' shanks to make Domino compatible slots with the MortisePal. Unfortunately they don't have the really big ones advertised on the Yank site.

Hi Silent

would a solid carbide dowell bit be a suitable substitute?
CMT series #310 have a 5mm sized described as excellent in high speed boring machines or CNC routers

Couldn't find a 5mm bit on the PWS site. I'll send him an email.

I think the problem with the CNC bits is that they have a shank size that is the same as the cutting diameter, so you need a chuck or a reducing bush. I rang Carbatec and spoke to them and that's what they told me anyway.

I tried a 5.5mm bit but it's a bit sloppy.

Originally Posted by silentC

I've sent them an email to see if they'll ship to Australia (online ordering is for UK and Europe only according to the web site).

If they don't ship to Oz, you could get them to post it to me (in the UK) and I'll forward it on for you.

Ray